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Cosmos 858 Rocket - Close encounters

The following table lists the upcoming close encounters with all other known orbiting objects for which orbital elements are available (over 16000). Only objects which come within 5 km are included. Please note that the accuracy of these predictions is limited by the accuracy of the latest orbital elements. A position accuracy of approximately 1 km is typical. Click on a row to get more details about the encounter and a graphical representation.

Time (UTC) Distance Relative speed Other object
km km/s Name ID Radar cross section
2021 Jul 27 02:52:490.47814.581DMSP 5D-2 F11 DEB28321small
2021 Jul 27 04:23:244.89914.975FENGYUN 1C DEB47007small
2021 Jul 27 04:33:013.85314.575DMSP 5D-2 F11 DEB28321small
2021 Jul 27 08:43:312.39214.549DMSP 5D-2 F11 DEB28321small
2021 Jul 27 10:23:432.44314.543DMSP 5D-2 F11 DEB28321small
2021 Jul 28 04:25:173.70714.943DMSP 5D-2 F13 DEB42262small
2021 Jul 28 08:28:592.9083.377DMSP B5D1-310820large
2021 Jul 28 09:07:484.69312.771Cosmos 96810520large
2021 Jul 28 09:40:194.11114.902FENGYUN 1C DEB31068small
2021 Jul 28 11:53:103.22314.881deb Chang Zheng 420853medium
2021 Jul 28 18:58:010.75014.485FENGYUN 1C DEB33637small
2021 Jul 28 23:57:094.52214.653DMSP 5D-2 F11 DEB29090small
2021 Jul 29 00:54:592.0255.523IRIDIUM 33 DEB36483small
2021 Jul 29 02:04:304.0693.280FENGYUN 1C DEB31637small
2021 Jul 29 04:22:063.81714.822CZ-4 R/B DEB37625small
2021 Jul 29 21:54:132.40014.865NOAA 8 DEB38840small
2021 Jul 30 01:05:183.24313.475FENGYUN 1C DEB30593small
2021 Jul 30 05:57:283.72714.817DMSP 5D-2 F13 DEB40569small
2021 Jul 30 23:45:282.14314.852DMSP 5D-2 F11 DEB28330small
2021 Jul 31 00:45:094.27814.261COSMOS 2251 DEB33785small
2021 Jul 31 20:38:224.14314.483deb RADCAL22706small
2021 Aug 01 14:38:580.59514.843CZ-4C DEB35251small
 

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